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Zinc chloride
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Recently, the demand for novel food-packaging materials with antimicrobial properties has been increasing drastically. In this report, we attempt to implant zinc ions on the surface of commercial paper sheets by using a hydrothermal method to create hydrozincite nanoflake structures.
9p
viambani
18-06-2024
1
0
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Mời các bạn học sinh và quý thầy cô cùng tham khảo “Đề thi học kì 1 môn KHTN lớp 8 năm 2023-2024 có đáp án - Trường TH&THCS Nguyễn Chí Thanh, Duy Xuyên” để giúp học sinh hệ thống kiến thức đã học cũng như có cơ hội đánh giá lại năng lực của mình trước kì thi sắp tới và giúp giáo viên trau dồi kinh nghiệm ra đề thi.
36p
boghoado023
21-02-2024
2
0
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Với mong muốn giúp các bạn có thêm tài liệu ôn tập thật tốt trong kì thi sắp tới. TaiLieu.VN xin gửi đến các bạn ‘Đề thi học kì 2 môn Hóa học lớp 8 năm 2022-2023 có đáp án - Trường THCS Tam Đông 1’. Vận dụng kiến thức và kỹ năng của bản thân để thử sức mình với đề thi nhé! Chúc các bạn đạt kết quả cao trong kì thi.
4p
tueman07
21-08-2023
3
2
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Trong bài viết này, vật liệu Fe-ZIF-11 được tổng hợp từ zinc acetate, iron(III) chloride và benzimidazole ở nhiệt độ phòng. Vật liệu tổng hợp được đặc trưng cấu trúc và tính chất bằng các phương pháp phổ tán xạ năng lượng tia X (EDX), nhiễu xạ tia X (XRD), phổ hồng ngoại (FTIR) và hiển vi điện tử quét (SEM).
7p
viberkshire
09-08-2023
8
2
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This study reports, for the first time, the fabrication of electrospun Cu 2 ZnSnS 4 (CZTS) nanofibers using metal acetate precursors. Viscous poly(vinyl pyrrolidone) (PVP) solution containing acetate or chloride salts of copper, zinc, and tin was electrospun onto a conductive substrate. The PVP nanofibers that have a mixture of metal salts were annealed at elevated temperatures. After calcination, these nanofibers were treated with the sulfur source and then annealed again in order to generate CZTS nanofibers.
7p
langthannam
29-12-2021
5
0
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The complexes of peripherally tetra-substituted metal-free (8), lead(II) (9), and zinc(II) (10) phthalocyanine derivatives were synthesized for the first time in this work. The structures of these new complex compounds have been elucidated using many spectral methods such as electronic absorption, FT-IR, 1H NMR, 13C NMR, elemental analysis, and mass spectra. The thermogravimetric behavior of compounds 8–10 was determined by thermogravimetric analysis method in addition to these spectral methods.
10p
tudichquannguyet
29-11-2021
6
0
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Adsorption of methylene blue from aqueous solutions using activated carbon derived from coffee husks
The adsorption of methylene blue (MB) onto activated carbon (AC) derived from coffee husk using zinc chloride activation at 600 oC was studied. The effects of various parameters such as contact time, initial MB concentration and temperature were investigated. The adsorption kinetics of pseudo first-order and pseudo second-order were used for the kinetic studies and were found to follow the pseudo second-order kinetic model.
12p
tamynhan9
02-12-2020
10
1
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This study aimed to develop a zinc sulfate preparation process from chloride-containing zinc ash formed during the hot dip galvanizing. Zinc sulfate solution was formed by the hydrometallurgyof zinc ash in sulfuric acid.
4p
nguathienthan5
03-06-2020
25
0
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In this study, the selective oximation of structurally diverse aromatic aldehydes (versus ketones) to the corresponding aldoxime derivatives was investigated using the combination system of NH2OH·HCl and bis-thiourea complexes of cobalt, nickel, copper and zinc chlorides, MII(tu)2Cl2, in a mixture of CH3CN-H2O (1:1).
10p
tocectocec
25-05-2020
9
1
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The present investigation was conducted on 24 diarrhoeic cattle calf (0-3 months old) and 08 healthy cattle calves. These diarrhoeic cattle calves were divided into three treatment groups (T1, T2, T3) and healthy control group (Tc) consisting of 08 cattle calves in each. Various Rehydration Electrolyte Solutions was prepared as RES1, RES2 and RES3 having zinc, glutamine and their combination respectively and effect of these RES solutions was seen on the alterations of serum protein and electrolytes on 0, 3 and 7th day.
11p
cothumenhmong1
11-12-2019
12
1
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S (deep eutectic solvents) [CholineCl][ZnCl2]3, được tạo thành từ choline chloride và zinc chloride (ZnCl2), với những ưu điểm vượt bậc như dễ dàng điều chế bằng phương pháp đun khuấy từ, xúc tác hiệu quả cho phản ứng acyl hóa các alcohol bậc 2 và anhydride acid với quy trình thực hiện phản ứng đơn giản dưới sự kích hoạt bằng phương pháp siêu âm cho hiệu suất cao. Phản ứng được thực hiện trên 6 alcohol bậc hai khác nhau trong thời gian 5 phút ở nhiệt độ phòng, hiệu suất sản phẩm thu được rất cao (88 – 96%).
8p
gildur
30-11-2019
23
1
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This study investigated the developmental toxicity of zinc chloride (ZnCl2) in zebrafish embryos (Brachydanio rerio, Cyprinidae, Cypriniformes). Zebrafish embryos were exposed to 5 different concentrations of ZnCl2, from the blastula stage, for 15 days under static renewal test conditions.
7p
vivant2711
01-02-2019
15
2
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Biochar was prepared from rice straw using hydrothermal carbonization method which consisted of zinc chloride treatment. The effects of hydrothermal temperature, time and biomass/water rate on methylene blue removal from aqueous solution were investigated. Besides, response surface modeling (RSM) and the central composite design – face centered (CCF) method will be used in designing experiments.
7p
cumeo3000
01-08-2018
47
1
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After studying this chapter you will be able to understand: Water: crucial to life, intake recommendations: how much water is enough? minerals, major minerals and health, sodium, potassium, chloride, calcium, phosphorus, magnesium, sulfur, trace minerals, iron, zinc,...
62p
nomoney17
04-07-2017
43
3
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The synthesis of 10-allyldeoxoartemisinin (7) in excellent yield through the intermediate, dihydroartemisinin10-benzoate (6) using zinc chloride as a catalyst was performed. This compound was then oxidized by osmium tetraoxide and ozone to give 10-(2’- carboxymethyl)deoxoartemisinin (8) in good yield. Esterification reaction of this compound with different benzyl alcohols in the presence of EDC and DMAP afforded a series of novel 10- deoxoartemisinins (9a-d) in high yields.
4p
uocvong04
24-09-2015
36
2
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Many of the inorganic and aesthetic constituents evaluated in the Guidelines are known to be essential for life. Chromium, copper, fluoride, iodine, manganese, molybdenum, and selenium are essential elements in human nutrition; arsenic and nickel are considered by some researchers as essential elements. Of the aesthetic constituents, iron, chloride, calcium and magnesium (hardness), sodium and zinc are essential elements.
20p
giamdocamnhac
06-04-2013
54
3
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: ZnO Nanorods via Spray Deposition of Solutions Containing Zinc Chloride and Thiocarbamide
6p
sting10
07-03-2012
48
3
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Synthesis and Characterization of ZnO Nanorods and Nanodisks from Zinc Chloride Aqueous Solution
7p
sting09
21-02-2012
54
3
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Zou et al. Nanoscale Research Letters 2011, 6:374 http://www.nanoscalereslett.com/content/6/1/374 NANO EXPRESS Open Access Shape and phase control of CdS nanocrystals using cationic surfactant in noninjection synthesis Yu Zou, Dongsheng Li* and Deren Yang Abstract Monodispersed CdS nanocrystals with controllable shape and phase have been successfully synthesized in this study by adding cationic surfactant in noninjection synthesis system.
6p
dauphong13
09-02-2012
57
6
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Kärber et al. Nanoscale Research Letters 2011, 6:359 http://www.nanoscalereslett.com/content/6/1/359 NANO EXPRESS Open Access Photoluminescence of spray pyrolysis deposited ZnO nanorods Erki Kärber1, Taavi Raadik1, Tatjana Dedova1, Jüri Krustok1, Arvo Mere1, Valdek Mikli2 and Malle Krunks1* Abstract Photoluminescence of highly structured ZnO layers comprising well-shaped hexagonal rods is presented.
7p
dauphong13
09-02-2012
54
8
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